Allodaposuchidae

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Allodaposuchidae
Temporal range: Late Cretaceous: Santonian-Maastrichtian, 86.3–66  Ma
Allodaposuchus precedens.jpg
A. precedens skull
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Archosauria
Clade: Pseudosuchia
Clade: Crocodylomorpha
Clade: Crocodyliformes
Clade: Neosuchia
Clade: Eusuchia
Clade: Allodaposuchidae
Narváez et al., 2015
Type species
Allodaposuchus precedens
Nopcsa, 1928
Genera

Allodaposuchidae is an extinct clade of eusuchians that lived in Europe during the Late Cretaceous (Santonian-Maastrichtian). [1] [2] [3]

Systematics

The type genus, Allodaposuchus , was originally described in 1928 by Nopcsa from the Maastrichtian-age Sard Formation of the Hațeg Basin in Transylvania, Romania, and classified as a relative of the North American Leidyosuchus . [4] It was later classified as a eusuchian outside of Crocodylia in a 2001 paper, [5] and subsequent studies found a number of European eusuchian species ( Arenysuchus , Ischyrochampsa , Massaliasuchus , Musturzabalsuchus ) to group with Allodaposuchus, prompting the erection of the clade Allodaposuchidae to accommodate Allodaposuchus and all European eusuchians closely related to it. [2] [3] [6] [7] [8] Narváez et al. cladistically defined Allodaposuchidae in 2015 as Allodaposuchus precedens and all crocodyliforms more closely related to it than to Hylaeochampsa vectiana , Shamosuchus djadochtaensis , Borealosuchus sternbergii , Planocrania datangensis , Alligator mississippiensis , Crocodylus niloticus , or Gavialis gangeticus . [2] [9]

The exact placement of Allodaposuchidae is still in dispute. Narváez et al. considered it the sister group to Hylaeochampsidae, which together form a clade that is sister to Crocodylia. [2] Other studies have alternatively recovered them not as sister taxon, but rather as an evolutionary grade towards Crocodylia, with Hylaeochampsidae more basal than Allodaposuchidae. [10] [9] Alternatively, a 2021 analysis incorporating postcranial information recovered Allodaposuchidae within Crocodylia. [11]

The internal phylogeny of Allodaposuchidae can be shown in the cladogram below from the 2021 Blanco study: [11]

Allodaposuchidae

In the 2021 study, Blanco recovered Allodaposuchus as paraphyletic, with Agaresuchus and Lohuecosuchus . Accordingly, Blanco proposed that Agaresuchus and Lohuecosuchus should be considered junior synonyms of Allodaposuchus. [11]

Related Research Articles

<i>Allodaposuchus</i> Extinct genus of reptiles

Allodaposuchus is an extinct genus of crocodyliforms that lived in what is now southern Europe during the Campanian and Maastrichtian stages, and possibly the Santonian stage, of the Late Cretaceous. Although generally classified as a non-crocodylian eusuchian crocodylomorph, it is sometimes placed as one of the earliest true crocodylians. Allodaposuchus is one of the most common Late Cretaceous crocodylomorphs from Europe, with fossils known from Romania, Spain, and France.

<i>Boverisuchus</i> Extinct genus of reptiles

Boverisuchus is an extinct genus of planocraniid crocodyliforms known from the middle Eocene of Germany and western North America. It was a relatively small crocodyliform with an estimated total length of approximately 2.2–3.6 metres (7.2–11.8 ft).

<i>Borealosuchus</i> Extinct genus of reptiles

Borealosuchus is an extinct genus of crocodyliforms that lived from the Late Cretaceous to the Eocene in North America. It was named by Christopher Brochu in 1997 for several species that had been assigned to Leidyosuchus. The species assigned to it are: B. sternbergii, the type species, from the Maastrichtian of Colorado, Montana, North Dakota, South Dakota, and Wyoming; B. acutidentatus, from the Paleocene of Saskatchewan; B. formidabilis, from the Paleocene of North Dakota; B. griffithi, from the Paleocene of Alberta; and B. wilsoni, from the Eocene of Wyoming. B. formidabilis is particularly well-known, represented by the remains of many individuals from the Wannagan Creek site in North Dakota. An indeterminate species is known from the Late Cretaceous Demopolis Chalk in Alabama.

<i>Aegyptosuchus</i> Extinct genus of reptiles

Aegyptosuchus is an extinct monospecific genus of aegyptosuchid eusuchian crocodyliform. It was found in the Bahariya Formation of Egypt, which dates back to the Cenomanian age of the Late Cretaceous. The type and only species is Aegyptosuchus peyeri.

<span class="mw-page-title-main">Eusuchia</span> Clade of reptiles

Eusuchia is a clade of neosuchian crocodylomorphs that first appeared in the Early Cretaceous, which includes modern crocodilians. Along with Dyrosauridae and Sebecosuchia, they were the only crocodyliformes who survived the K-Pg extinction.

<span class="mw-page-title-main">Alligatoroidea</span> Superfamily of reptiles

Alligatoroidea is one of three superfamilies of crocodylians, the other two being Crocodyloidea and Gavialoidea. Alligatoroidea evolved in the Late Cretaceous period, and consists of the alligators and caimans, as well as extinct members more closely related to the alligators than the two other groups.

<i>Acynodon</i> Extinct genus of reptiles

Acynodon is an extinct genus of eusuchian crocodylomorph from the Late Cretaceous, with fossils found throughout Southern Europe.

<i>Massaliasuchus</i> Extinct genus of reptiles

Massaliasuchus is an extinct monospecific genus of allodaposuchid eusuchian crocodyliform that is known from fossils found in Santonian–Campanian-age Upper Cretaceous rocks of southeastern France.

Brillanceausuchus is an extinct genus of paralligatorid crocodyliforms. Fossils have been found in Early Cretaceous–age rocks of Cameroon. The genus is notable for the position of the secondary choana within its palate. Parts of the pterygoid bones make up the rostral margin of the choana and thus separate it from the palatines, a feature also seen in the more advanced neosuchian suborder Eusuchia. This characteristic was once thought to be characteristic of Eusuchia, but its presence in Brillanceausuchus suggests that the trait is homoplasic, thus making the evolution of the position of the choana within crocodilians more complex than previously thought.

Dolichochampsa is an extinct genus of eusuchian crocodylomorph. It is the type genus and only member of the family Dolichochampsidae. Fossils have been found in the Yacoraite Formation of Argentina and the El Molino Formation of Bolivia of Maastrichtian age. It had a distinctive slender snout. Because the material associated with the specimens is so fragmentary, its relationships with other eusuchians remain unknown. Jouve et al. (2020) assigned Dolichochampsa to Gavialoidea, making it the oldest known South American member of this clade.

<i>Musturzabalsuchus</i> Extinct genus of reptiles

Musturzabalsuchus is an extinct monospecific genus of allodaposuchid eusuchian crocodyliform. The type and only species is Musturzabalsuchus buffetauti.

<i>Planocrania</i> Extinct genus of reptiles

Planocrania is an extinct genus of eusuchian crocodyliforms from what is now China. Two species are currently known to belong to the genus.

<span class="mw-page-title-main">Crocodyloidea</span> Superfamily of crocodiles

Crocodyloidea is one of three superfamilies of crocodilians, the other two being Alligatoroidea and Gavialoidea, and it includes the crocodiles. Crocodyloidea may also include the extinct Mekosuchinae, native to Australasia from the Eocene to the Holocene, although this is disputed.

<span class="mw-page-title-main">Gavialoidea</span> Superfamily of large reptiles

Gavialoidea is one of three superfamilies of crocodylians, the other two being Alligatoroidea and Crocodyloidea. Although many extinct species are known, only the gharial Gavialis gangeticus and the false gharial Tomistoma schlegelii are alive today, with Hanyusuchus having become extinct in the last few centuries.

<span class="mw-page-title-main">Aegyptosuchidae</span> Extinct family of reptiles

Aegyptosuchidae is an extinct family of eusuchian crocodyliforms from the Cretaceous period of Africa. They are characterized by their large size and flat heads. The family includes two genera, Aegyptosuchus and Aegisuchus.

<span class="mw-page-title-main">Planocraniidae</span> Extinct family of reptiles

Planocraniidae is an extinct family of eusuchian crocodyliforms known from the Paleogene of Asia, Europe and North America. The family was coined by Li in 1976, and contains three genera, Boverisuchus, Duerosuchus and Planocrania. Planocraniids were highly specialized crocodyliforms that were adapted to living on land. They had extensive body armor, long legs, and blunt claws resembling hooves, and are sometimes informally called "hoofed crocodiles".

<i>Lohuecosuchus</i> Extinct genus of reptiles

Lohuecosuchus is an extinct genus of allodaposuchid eusuchian crocodylomorph that lived during the Late Cretaceous in what is now Spain and southern France.

<i>Agaresuchus</i> Extinct genus of reptiles

Agaresuchus is an extinct genus of allodaposuchid eusuchian crocodylomorph from the Late Cretaceous (Campanian-Maastrichtian) of Spain. It includes two species, the type species Agaresuchus fontisensis, and Agaresuchus subjuniperus, which was originally named as a species of the related genus Allodaposuchus. However, it has been proposed that both species may instead belong to the genus Allodaposuchus.

<span class="mw-page-title-main">Longirostres</span> Clade of crocodilians

Longirostres is a clade of crocodilians that includes the crocodiles and the gavialids, to the exclusion of the alligatoroids. Defined in 2003 by Harshman et al., Longirostres is a crown group defined phylogenetically as including the last common ancestor of Crocodylus niloticus and Gavialis gangeticus and all of its descendants.

Aprosuchus is a genus of small-bodied Maastrichtian atoposaurid Eusuchian from the Hateg Basin, Romania.

References

  1. Hristova, L. (2020). "Description of Crocodylomorph Teeth from the Late Cretaceous Locality near Tran, Western Bulgaria". Comptes Rendus de l'Académie Bulgare des Sciences. 73 (3): 379–385. doi:10.7546/CRABS.2020.03.11.
  2. 1 2 3 4 Narváez, Iván; Brochu, Christopher A.; Escaso, Fernando; Pérez-García, Adán; Ortega, Francisco (2015). "New crocodyliforms from southwestern Europe and definition of a diverse clade of European Late Cretaceous basal eusuchians". PLOS ONE. 10 (11): e0140679. Bibcode:2015PLoSO..1040679N. doi: 10.1371/journal.pone.0140679 . PMC   4633049 . PMID   26535893.
  3. 1 2 Narváez, I.; Brochu, C.A.; Escaso, F.; Pérez-García, A.; Ortega, F. (2016). "New Spanish Late Cretaceous eusuchian reveals the synchronic and sympatric presence of two allodaposuchids". Cretaceous Research. 65: 112–125. Bibcode:2016CrRes..65..112N. doi: 10.1016/j.cretres.2016.04.018 .
  4. Nopcsa F., 1928 – Paleontological notes on Reptilia. 7. Classification of the Crocodilia – Geologica Hungarica, Series Palaeontologica 1: 75–84.
  5. Buscalioni, A. D.; Ortega, F.; Weishampel, D. B.; Jianu, C. M. (2001). "A revision of the crocodyliform Allodaposuchus precedens from the Upper Cretaceous of the Hateg Basin, Romania. Its relevance in the phylogeny of Eusuchia". Journal of Vertebrate Paleontology. 21: 74–86. doi:10.1671/0272-4634(2001)021[0074:AROTCA]2.0.CO;2. S2CID   86129560.
  6. Martin, J. E.; Delfino, M.; Garcia, G.; Godefroit, P.; Berton, S.; Valentin, X. (2016). "New specimens of Allodaposuchus precedens from France: intraspecific variability and the diversity of European Late Cretaceous eusuchians". Zoological Journal of the Linnean Society. 176 (3): 607–631. doi: 10.1111/zoj.12331 .
  7. Blanco, Alejandro; Fortuny, Josep; Vicente, Alba; Luján, Àngel H.; García-Marçà, Jordi Alexis; Sellés, Albert G. (2015). "A new species of Allodaposuchus (Eusuchia, Crocodylia) from the Maastrichtian (Late Cretaceous) of Spain: Phylogenetic and paleobiological implications". PeerJ. 3: e1171. doi: 10.7717/peerj.1171 . PMC   4558081 . PMID   26339549.
  8. Blanco, A.; Puértolas-Pascual, E.; Marmi, J.; Vila, B.; Sellés, A. G. (2014). "Allodaposuchus palustris sp. nov. From the Upper Cretaceous of Fumanya (South-Eastern Pyrenees, Iberian Peninsula): Systematics, Palaeoecology and Palaeobiogeography of the Enigmatic Allodaposuchian Crocodylians". PLOS ONE. 9 (12): e115837. Bibcode:2014PLoSO...9k5837B. doi: 10.1371/journal.pone.0115837 . PMC   4281157 . PMID   25551630.
  9. 1 2 Rio, Jonathan P.; Mannion, Philip D. (6 September 2021). "Phylogenetic analysis of a new morphological dataset elucidates the evolutionary history of Crocodylia and resolves the long-standing gharial problem". PeerJ . 9: e12094. doi: 10.7717/peerj.12094 . PMC   8428266 . PMID   34567843.
  10. Michael S. Y. Lee; Adam M. Yates (27 June 2018). "Tip-dating and homoplasy: reconciling the shallow molecular divergences of modern gharials with their long fossil". Proceedings of the Royal Society B . 285 (1881). doi: 10.1098/rspb.2018.1071 . PMC   6030529 . PMID   30051855.
  11. 1 2 3 Blanco, Alejandro (2021-06-09). "Importance of the postcranial skeleton in eusuchian phylogeny: Reassessing the systematics of allodaposuchid crocodylians". PLOS ONE . 16 (6): e0251900. Bibcode:2021PLoSO..1651900B. doi: 10.1371/journal.pone.0251900 . ISSN   1932-6203. PMC   8189472 . PMID   34106925.